Cambridge IGCSE Chemistry practice

Paper 3 structured question: Ions and ionic bonds

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Paper

Marks

Topic

Ions and ionic bonds

Exam-style question

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Paper 3Theory (Core)1 marks

Ionic compounds are widely used in various applications due to their unique properties.

Description

Ionic compounds are known for their high melting and boiling points and their ability to conduct electricity when dissolved in water or melted.

a
State one characteristic of ionic compounds related to their melting points.
Your answer
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[1]

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Paper 3Theory (Core)3 marks

Description

Ionic compounds can conduct electricity when dissolved in water or melted, but not when solid.

a
Describe how ionic compounds conduct electricity when dissolved in water.
Your answer
Aim for approximately 3 distinct marking points.
[3]